The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2014
Filed:
Dec. 07, 2007
Tomohiro Hayakawa, Okayama, JP;
Shinya Inada, Okayama, JP;
Hideo Hayashi, Okayama, JP;
Hiroyuki Kawai, Osaka, JP;
Masakazu Nishiyama, Okayama, JP;
Tomohiro Hayakawa, Okayama, JP;
Shinya Inada, Okayama, JP;
Hideo Hayashi, Okayama, JP;
Hiroyuki Kawai, Osaka, JP;
Masakazu Nishiyama, Okayama, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
Provided is a separator for alkaline batteries which can not only prevent batteries from internal short circuit by inhibiting the dendrite formation at anode, but also enables to have a low electrical resistance. The separator for alkaline batteries comprises a composite sheet in which a base layer comprising a wet-type nonwoven material formed from alkaline resistant fibers is covered with a nanofiber layer comprising a modified polyvinyl alcohol fiber which has a fiber diameter of 10 to 1000 nm and a liquid absorption amount by fibers of 4.0 to 40.0 g/g after immersion in a 35% aqueous solution of KOH.